January Weather in Healdsburg

Last updated: March 2, 2024

The weather in Healdsburg, United States, during January is characterized by an average temperature of 9°C (49°F). Highs can soar to 21°C (69°F), while lows may dip to -1°C (31°F). Typically, the humidity level in Healdsburg throughout January hovers around 86%.

-1°C (31°F)

Minimum temperature

9°C (49°F)

Average temperature

21°C (69°F)

Maximum temperature

86%

Humidity

Precipitation and Sunshine hours

In January, Healdsburg averages 139 mm (5.5 inches) of rainfall, typically over the course of 8 rainy days. The month enjoys an average of 9 hours 48 minutes of daylight, with the sun shining for approximately 4 hours 33 minutes each day. Additionally, there is a 37% probability of sunny days during this period.

139 mm (5.5 inches)

Precipitation

8 rainy days

Rainy days

4 hours 33 minutes

Sunshine hours

37%

Chance of sun

UV Index

In January, the UV Index in Healdsburg reaches a maximum of 3, indicating a level of Moderate exposure. The most intense UV radiation typically occurs between 11:00 and 13:00, during which unprotected skin may burn in as little as 30 minutes.

Average solar exposure data for the current time of the year. Actual values may vary and depend on many factors, such as cloud cover, vegetation cover, surface type, etc.
  07:00 08:00 09:00 10:00 11:00 12:00 13:00 14:00 15:00 16:00 17:00 18:00 19:00
UVI 0 1 1 2 3 3 3 3 2 1 1 0 0
Exposure Low Moderate Low
Time to burn 45 min 30 min 45 min

Compare Healdsburg's Climate with Cities Worldwide